Re: am I the only one who DIDN'T think Nicholson nailed joker??
Nerve gases exist in real life. Organizations that topple or attempt to topple great empires are documented throughout history. Burn victims survive even some of the most horrific burns imaginable. Vehicles similar in design and function to the Tumbler and the Batpod and The Bat exist in real life. Maybe I'll give the Microwave Emitter, but even that is something I can see being developed in the real world.
Are the things you mentioned real? No. But their starting off point is always something that actually exists. Nolan took concepts from the real world, expanded them and added an element of the fantastic. Hence, grounded in reality.
Name me ONE person who requires anything even remotely similar to Freeze's ice suit to survive. Name me ONE person who can do anything remotely similar to Ivy's pheromone control/deadly kiss. Name me ONE device that works remotely like Nigma's machine.